Concept:The odd word is found by grouping words with the same type of meaning or emotional tone.Explanation:Moan, cry, and complain all express negative feelings like sadness, pain, or dissatisfaction.Giggle means to laugh lightly in a silly way, so it expresses a positive or happy feeling.Therefore, Giggle is different from the other three words.
Word
Meaning
Moan
to make a long deep sound, usually because you are unhappy or suffering
Giggle
to laugh in a silly way
Cry
to produce tears from your eyes because you are unhappy or hurt
Complain
to say that you are annoyed, unhappy or not satisfied about somebody/something